ZIP Code 66770 — Riverton, KS
66770 is a standard (street delivery) ZIP code serving Riverton, Kansas, in Cherokee County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 66770 at a glance
| ZIP code | 66770 |
|---|---|
| Primary city | Riverton |
| State | Kansas (KS) |
| County | Cherokee FIPS 20021 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,047 |
| Coordinates | 37.080140, -94.716010 |
How ZIP+4 works in 66770
The four digits after the hyphen encode a delivery segment inside 66770. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 66770 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 66770.
| ZIP | City | Distance |
|---|---|---|
| 66739 | Galena, KS | 3.9 mi |
| 66713 | Baxter Springs, KS | 5 mi |
| 66778 | Treece, KS | 8.7 mi |
| 74363 | Quapaw, OK | 8.8 mi |
| 74360 | Picher, OK | 9.6 mi |
| 64834 | Carl Junction, MO | 11 mi |
| 66725 | Columbus, KS | 11 mi |
| 64804 | Joplin, MO | 12 mi |
| 64801 | Joplin, MO | 12.2 mi |
| 74339 | Commerce, OK | 13.5 mi |
| 66773 | Scammon, KS | 13.9 mi |
| 74358 | North Miami, OK | 14.4 mi |
Questions about 66770
What is the ZIP+4 code for 66770?
66770 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 66770, you need to look up a specific street address to get them.
What city is 66770?
66770 is assigned to Riverton, Kansas, in Cherokee County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.